Tractor.



A. PLHAWN.

y TRACTOR. APPLICATION FILED JULY 9.1914.

hm 42M A. P. HAWN.

TRACTOR.

APPLICATION' FILED TULY 9. |914.

1,215,372. I Patent@ Feb. 13,1917.

2 SHEETSSHEET 2.

\ Jay/@@2224 l ANDREW P. HAWN, 0F GOODLAND, INDIANA, ASSIGNOR, BY MESNEASSIGNMENTS, TO ADVANCE-RUMELY COMPANY, 0F LAPORTE, INDIANA, ACORPORATION OF INDIANA.

TRACTOR.

Specicatioers Patent. Patented Feb. 13, 191.

`Application neuilly 9, 1914. serial No. 849,878.

To all whom 'it may concern:

Be it known that I, ANDREW P. HAwN, a citizen of the United States,residing at Goodland, in the county of Newton and State of Indiana, haveinvented a certain new and useful Improvement in Tractors, j

of which the following is a specification.l

Myy invention relates generally to imjprovements ,in tractors and hasfor one 0bside; Fig. 3 is an elevation of the rightehand side.

Like parts are indicated by thesame let'- ter throughout the severalfigures.

The main tractor frame is made up of the two parallel longitudinal framemembers A1, A2 extending from end to end of the machine. They are tiedtogether by the cross members A2, A4 which extend out beyond the frameto one side to meet and be attached to an inclined frame member A5,which, beingcurved at its forward end, extends across to tie togetherthe frame members A1, A2 at the front of the machine. AG

is 'an inclined rear frame member attached at one end to the outer endof the frame member A5 extending rearwardly back to tie together therear ends of the members A1, A2. A7 is a parallel frame member forming aportion of the engine base and parallel with the members A1, A2. It isattached at either end to the members A5,

Ae and vintermediate its two ends to the members A3, A4. A8 is the drivewheel axle mounted in bearings A9 on the frame members A1, A2, and A10is the drive wheel provided with spikes A11. A12 is a bent fixed axleattached at one end to the frame member A7, supported adjacent its otherend in the block A13 downwardly depending from the point of'connectionof the members A,

A", and carrying an idler wheel A12. A15 is a stay member attached 4atone end to the frame member A adjacent its front end,` at the other endunderslung by means of astirrup A11 from the iXed axle A12, 'anddownwardly extended intermediate its two ends and braced by means of thebrace A17 to the main frame. A12 is the forward steering wheel mountedin the fork A12,

which fork is supported in a bearing sleeve A20, which sleeve issupported by the cross pieces A21 on the frame members A1, A2, thesleeve being supported by the braces A22, A22, the load being applied onthe fifth wheel A24 surrounding the fork and interposed vftween itandthe frame and crosspieces 21 A25 isa steering spindle supported onthe frame members A1,.A2 behind the steering wheel around which iswrapped the steering cable A21 which in turn is wound around a drum A27.This steering lspindle is controlled by means of a hand wheel A2, thesteering column A20, pinion A21 and gear A22.

B is an engine mounted in any suitable manner between the frame membersA2, A7, having a clutch B1. B2 is a .Clutch lever pivoted at one end onthe frame A7 and attached tothe clutchat B3. B4 is a control leverpivoted on the frame member A1 adl jacent the hand of the operator. B2is a connecting link leading from the lever B1 to a cross lever B6,which lever is pivoted on a bracket B7 between the frame members A3, A1.B2 is a link .interposed between the free'end ofthe lever BG and theclutch lever B2 whereby the operator by 4manipulating the lever B4 mayoperate the clutch. B2 is a drive shaft,vB10 a -universal jointconnecting it to the clutch B1, and B11 a driv-l ing pinion mounted onthe end of the drive shaft B2. B12 is a reverse shaft extendingtransversely across the frame parallel. with the axle of the drivingwheel.l Splined thereto are the two opposed miter gears B12,

B14 free to slide and held against rotation 'the lever B11 with therocker arm B21 0n the rock shaft B22, which rock shaft is pivoted on theframe. B23 is a lever mounted on the rock shaft B22, and B21 is a linkextending forwardly from said lever or arm B22. B25 is a rocker arm onarock shaft B2, which rocker` arm has pivoted to its end the link B21.The rock shaft B26 is rotatably mounted in the frame. It has mountedthereon the two rocker arms B27, B2". To one of these arms lis attacheda link B29 having a loop 4B8o to engage the shaft B12.

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A slipping the hub and miter gears back and forth as thecase may be toengage either one or the other of the driving miter pinions to controlthe direction of rotation of the reverse shaft B13.

C is a sprocket mounted'on the reverse I ,shaft B. C1 is a sprocketmounted on the member into said jaw.

countershaft C3. C3 is a sprocket chain driving the countershaf't fromthe reverse shaft. C4 is a. driving sprocket mounted on thecounter-shaft, C a. driving chain and C a bull or driving sprocket onthe bull or driving wheel. Sprocket G4 is free to rotate on the shaft )7is a clutch member keyed to the shaft (l2 and having a lug C* to engageajaw C on the hub of the sprocket C4. C1 is a spring yieldingly'throwingsaid clutch C is a bell crank control lever for said clutch, U3 thecontrol link and C13 a pedal control for the operator. whereby thisclutch may be disengaged to permit rotation of' the engine and reversingmechanism without movement of the propeller wheel so that power can betaken from the belt pulley (11,4 if need be.

It will be evident that, while I have shown in my drawings an operativedevice, still *many changes ymight be made in size, shape andarrangement of parts without departing materially from the spirit of myinvention. I wish, therefore, that my drawings be regarded as in a sensediagrammatic.

The use and operation of my invention are as follows:

When the machine is to be used for plowing, the plows will be arrangedas shown, being attached lever to the traction bar. The height of thefront end of the plow beam will be adjusted by means of the nuts on thesuspendingl screws which may be moved up or down to raise or lower thefront end of the plow beam. The two'ijiows being attached one at eitherend of the equalizing lever, there is a single point at which thetractive force of the engine is applied. This point, it -will be notedin Fig. 1, is slightly to the right of the center of the driving wheel.This is necessitated by the fact that the outside plow must be offset sothat the weight of the tractor will notl come too near the edge of theframe. This offset or eccentric-ity of the line of force will, ofcourse, tend to swing on the left-hand side exerts a sufficient reat thecenter of the equalizingv shaft' and thus' drive the forward moving orreversing 'gear into mesh with the constantly moving pinion and thuscontrol the direction of rotation of this shaft. The operator will thenthrow in the clutch in the usual manner, and the machine will go aheador reverse, as the case may be, being driven from the engine through themedium of the clutch,V reversing gear, sprockets, countershaft andsprocket chains. When, however, it is desired to take power from thebelt without moving the engine forward, the operator will manipulate theclutch on the counter-shaft and disconnect the sprocket on thecountershaft Vfrom driving connection therewith so that thecountershaftI may rotate freely and power may be taken from the pulleyon the reversing shaft.

W hen the tractor is under way with the plows in the downward position,plowing, of course, takes place. When vthe operator wishes to raise theplows he puts his foot on the plow raising lever and draws the clutch upagainst the spring to bring the friction clutch on the countershaftagainst the side of the plow lifting drum and rotate it by itsfrictional drive. As this drum rotates it winds in the plow liftingcable and this results in a rocking of the plow lift rock shaftand thetwo plows are lifted out of the ground simultaneously. lVhen lthey havebeen lifted out a sufficient distance, the automatic catch comes intoplay and the operator by releasing the pressureof the frictionclutch'will allow the weight of theplows to drop back upon this hook orcatch and the 'plows will be held out of the ground. When it is desiredto again bring the plows into operation he can either release this hookand let the plows drop violently or by manipulation of the plow liftraise the plows gradually, release the hook and allow them by graduallyreleasing the clutch to be gradually dropped into the ground.

When the machine is to be used for general traction purposes or haulinganything except'plows, it is necessary only to withdraw the pivotal nutand bolt holding the equalizing bar and the traction bar. This releasesthe plows from traction and then by disconnecting the chain from theplow lift the plows may be removed and the load applied to the tractionbar in the usual manner, thus providing an all-purpose traction engine.,Y

The steering of 'my tractor is, of course,

carried out in the usual manner by means .engine fly wheel and clutchwith respect to the body or frame of the machine is such that the centerof gravity of the engine lies. substantially on a line `joiningthe axesof the driving and idler wheels and that the engine is intermediate thedriving and idler wheels so that in a sense my tractor operates somewhatsimilar `to a motorcycle in 'that it-has an idler wheel and a frontsteering wheel which carry substantiallyall the load, the idler wheelcarrying'only a small portion of it. Experience shows that when theengine' is in movement carrying a load the weight onthe driving wheelisvery materially increased and the"weight on 'the steering wheel andidler wheel is materially decreased so that with a light traction engineIam still able to get a maximum 'of load on a driving wheel where it isneeded to give suflicient friction and adhesion'for the necessary power.This result seems to be obtained by the off-set, by the `particulararrangement of sprocket and driving chain and by the location oftheengine and other heavy arts all in cooperation together with tl'll'Jrlelgtion between the idler and driving w ee v I claim -z 1. A. framefor tractors made up of two 'parallel frame members extendingsubstantially the whole length of the frame, two inclined members tyingthe two ends of the longitudinal members together and intersecting at'apoint removed from them, a short longitudinal member parallel with saidmain longitudinal members and supportedon the inclined members, anengine mounted between said short member and one of the longer ones, atractor wheel at one side of the engine, an idler wheel at the other,said tractor wheel being interposed between the two parallellongitudinal frame members, and a steering wheel in front of and in linewith 'the tractor wheel.

2. A tractor having a single drive wheel, anidler wheel at `one sidethereof having its .axis in the same vertical plane as the axis of lthedriving wheel, a vsteering' v'vheel front of the driving wheelsubstantially in p line with it and a draft connection at the rear endofthe machine olf-set a short distance beyond the center of the driveWheel away from the idler wheel, an engine sup portedl between Vthedriving and the idler .i

wheel having its center of gravity substan tially in the line betweenthem,` a'power transmission interposed between said engine and the drivewheel and arranged to exert an upward lift on the engineframe.

3. A tractor having a single drivel wheel,

an idler wheelat one-side thereof, a steering,

wheel in front of the driving wheel substantially in linewith it and adraft connection atthe rear end ofthe machine oli-set a short i distancebeyond the center of the drive wheel.

of said wheels, said members being tied together byl cross members, andbeing supported on the two wheels, an idler wheel at one side of thetractor member, diagonal frame members extending from the ends of saidtwo parallel side members converging toward the idler wheel,1 and alongitudinal member carried by them parallel with the two side members.4 In testimony whereof, I affix my signature in the presence of two4witnesses this 25th day of June 1914:.4

ANDREW P. HAWN.

l/Vitnesses: u

R. M. SHEPARD, A. G. JAKWAY.

